DRUG DESCRIPTION

Aminohippurate sodium is an agent to measure effective renal plasma flow (ERPF).
It is the sodium salt of para-aminohippuric acid, commonly abbreviated "PAH".
It is water soluble, lipid-insoluble, and has a pKa of 3.83. The empirical formula
of the anhydrous salt is C9H9N2NaO3
and its structural formula is:

It is provided as a sterile, non-preserved 20 percent aqueous solution for injection, with a pH of 6.7 to 7.6. Each 10 mL contains: Aminohippurate sodium (aminohippurate) 2 g. Inactive ingredients: Sodium hydroxide to adjust pH, water for injection, q.s.